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https://github.com/FFmpeg/FFmpeg.git
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avfilter/vf_transpose: rewrite for x86 SIMD
Transpose first in chunks of 8x8 blocks. 15% faster overall.
This commit is contained in:
Paul B Mahol
parent
cbd8e07056
commit
7b19e76aeb
@ -58,6 +58,12 @@ typedef struct TransContext {
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int passthrough; ///< PassthroughType, landscape passthrough mode enabled
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int dir; ///< TransposeDir
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void (*transpose_8x8)(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize);
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void (*transpose_block)(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize,
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int w, int h);
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} TransContext;
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static int query_formats(AVFilterContext *ctx)
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@ -79,6 +85,109 @@ static int query_formats(AVFilterContext *ctx)
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return ff_set_common_formats(ctx, pix_fmts);
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}
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static inline void transpose_block_8_c(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize,
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int w, int h)
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{
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int x, y;
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for (y = 0; y < h; y++, dst += dst_linesize, src++)
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for (x = 0; x < w; x++)
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dst[x] = src[x*src_linesize];
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}
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static void transpose_8x8_8_c(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize)
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{
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transpose_block_8_c(src, src_linesize, dst, dst_linesize, 8, 8);
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}
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static inline void transpose_block_16_c(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize,
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int w, int h)
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{
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int x, y;
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for (y = 0; y < h; y++, dst += dst_linesize, src += 2)
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for (x = 0; x < w; x++)
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*((uint16_t *)(dst + 2*x)) = *((uint16_t *)(src + x*src_linesize));
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}
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static void transpose_8x8_16_c(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize)
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{
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transpose_block_16_c(src, src_linesize, dst, dst_linesize, 8, 8);
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}
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static inline void transpose_block_24_c(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize,
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int w, int h)
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{
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int x, y;
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for (y = 0; y < h; y++, dst += dst_linesize) {
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for (x = 0; x < w; x++) {
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int32_t v = AV_RB24(src + x*src_linesize + y*3);
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AV_WB24(dst + 3*x, v);
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}
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}
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}
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static void transpose_8x8_24_c(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize)
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{
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transpose_block_24_c(src, src_linesize, dst, dst_linesize, 8, 8);
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}
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static inline void transpose_block_32_c(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize,
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int w, int h)
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{
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int x, y;
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for (y = 0; y < h; y++, dst += dst_linesize, src += 4) {
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for (x = 0; x < w; x++)
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*((uint32_t *)(dst + 4*x)) = *((uint32_t *)(src + x*src_linesize));
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}
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}
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static void transpose_8x8_32_c(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize)
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{
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transpose_block_32_c(src, src_linesize, dst, dst_linesize, 8, 8);
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}
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static inline void transpose_block_48_c(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize,
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int w, int h)
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{
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int x, y;
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for (y = 0; y < h; y++, dst += dst_linesize, src += 6) {
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for (x = 0; x < w; x++) {
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int64_t v = AV_RB48(src + x*src_linesize);
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AV_WB48(dst + 6*x, v);
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}
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}
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}
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static void transpose_8x8_48_c(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize)
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{
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transpose_block_48_c(src, src_linesize, dst, dst_linesize, 8, 8);
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}
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static inline void transpose_block_64_c(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize,
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int w, int h)
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{
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int x, y;
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for (y = 0; y < h; y++, dst += dst_linesize, src += 8)
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for (x = 0; x < w; x++)
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*((uint64_t *)(dst + 8*x)) = *((uint64_t *)(src + x*src_linesize));
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}
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static void transpose_8x8_64_c(uint8_t *src, ptrdiff_t src_linesize,
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uint8_t *dst, ptrdiff_t dst_linesize)
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{
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transpose_block_64_c(src, src_linesize, dst, dst_linesize, 8, 8);
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}
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static int config_props_output(AVFilterLink *outlink)
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{
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AVFilterContext *ctx = outlink->src;
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@ -118,6 +227,21 @@ static int config_props_output(AVFilterLink *outlink)
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else
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outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
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switch (s->pixsteps[0]) {
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case 1: s->transpose_block = transpose_block_8_c;
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s->transpose_8x8 = transpose_8x8_8_c; break;
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case 2: s->transpose_block = transpose_block_16_c;
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s->transpose_8x8 = transpose_8x8_16_c; break;
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case 3: s->transpose_block = transpose_block_24_c;
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s->transpose_8x8 = transpose_8x8_24_c; break;
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case 4: s->transpose_block = transpose_block_32_c;
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s->transpose_8x8 = transpose_8x8_32_c; break;
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case 6: s->transpose_block = transpose_block_48_c;
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s->transpose_8x8 = transpose_8x8_48_c; break;
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case 8: s->transpose_block = transpose_block_64_c;
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s->transpose_8x8 = transpose_8x8_64_c; break;
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}
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av_log(ctx, AV_LOG_VERBOSE,
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"w:%d h:%d dir:%d -> w:%d h:%d rotation:%s vflip:%d\n",
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inlink->w, inlink->h, s->dir, outlink->w, outlink->h,
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@ -176,49 +300,25 @@ static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr,
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dstlinesize *= -1;
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}
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switch (pixstep) {
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case 1:
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for (y = start; y < end; y++, dst += dstlinesize)
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for (x = 0; x < outw; x++)
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dst[x] = src[x * srclinesize + y];
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break;
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case 2:
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for (y = start; y < end; y++, dst += dstlinesize) {
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for (x = 0; x < outw; x++)
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*((uint16_t *)(dst + 2 * x)) =
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*((uint16_t *)(src + x * srclinesize + y * 2));
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for (y = start; y < end - 7; y += 8) {
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for (x = 0; x < outw - 7; x += 8) {
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s->transpose_8x8(src + x * srclinesize + y * pixstep,
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srclinesize,
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dst + (y - start) * dstlinesize + x * pixstep,
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dstlinesize);
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}
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break;
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case 3:
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for (y = start; y < end; y++, dst += dstlinesize) {
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for (x = 0; x < outw; x++) {
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int32_t v = AV_RB24(src + x * srclinesize + y * 3);
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AV_WB24(dst + 3 * x, v);
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}
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}
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break;
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case 4:
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for (y = start; y < end; y++, dst += dstlinesize) {
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for (x = 0; x < outw; x++)
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*((uint32_t *)(dst + 4 * x)) =
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*((uint32_t *)(src + x * srclinesize + y * 4));
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}
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break;
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case 6:
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for (y = start; y < end; y++, dst += dstlinesize) {
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for (x = 0; x < outw; x++) {
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int64_t v = AV_RB48(src + x * srclinesize + y*6);
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AV_WB48(dst + 6*x, v);
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}
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}
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break;
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case 8:
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for (y = start; y < end; y++, dst += dstlinesize) {
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for (x = 0; x < outw; x++)
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*((uint64_t *)(dst + 8*x)) = *((uint64_t *)(src + x * srclinesize + y*8));
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}
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break;
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if (outw - x > 0 && end - y > 0)
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s->transpose_block(src + x * srclinesize + y * pixstep,
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srclinesize,
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dst + (y - start) * dstlinesize + x * pixstep,
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dstlinesize, outw - x, end - y);
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}
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if (end - y > 0)
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s->transpose_block(src + 0 * srclinesize + y * pixstep,
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srclinesize,
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dst + (y - start) * dstlinesize + 0 * pixstep,
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dstlinesize, outw, end - y);
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}
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return 0;
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